- 28 2月, 2017 5 次提交
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由 Chao Yu 提交于
We should only account F2FS_{CP_}WB_DATA IOs for write path, fix it. Signed-off-by: NChao Yu <yuchao0@huawei.com> Signed-off-by: NJaegeuk Kim <jaegeuk@kernel.org>
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由 Chao Yu 提交于
Previously kernel message can show that in which function we do the injection, but unfortunately, most of the caller are the same, for tracking more information of injection path, it needs to show upper caller's name. This patch supports that ability. Signed-off-by: NChao Yu <yuchao0@huawei.com> Signed-off-by: NJaegeuk Kim <jaegeuk@kernel.org>
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由 Yunlei He 提交于
Similar as f2fs_write_inode, f2fs_write_inline_data just mark inode page dirty, so it's no need to write inline data under read lock of cp_rwsem. Signed-off-by: NYunlei He <heyunlei@huawei.com> Signed-off-by: NJaegeuk Kim <jaegeuk@kernel.org>
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由 Kinglong Mee 提交于
When more than one data blocks are allocated, the F2FS_MAP_UNWRITTEN/MAPPED flags will be overlapped by F2FS_MAP_NEW at the later times. Signed-off-by: NKinglong Mee <kinglongmee@gmail.com> Reviewed-by: NChao Yu <yuchao0@huawei.com> Signed-off-by: NJaegeuk Kim <jaegeuk@kernel.org>
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由 Hou Pengyang 提交于
To avoid such stale(fops, blk, len) info in f2fs_lookup_extent_tree_end tp dio-23095 [005] ...1 17878.856859: f2fs_lookup_extent_tree_end: dev = (259,30), ino = 856, pgofs = 0, ext_info(fofs: 3441207040, blk: 4294967232, len: 3481143808) Signed-off-by: NHou Pengyang <houpengyang@huawei.com> Reviewed-by: NChao Yu <yuchao0@huawei.com> Signed-off-by: NJaegeuk Kim <jaegeuk@kernel.org>
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- 24 2月, 2017 5 次提交
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由 Jaegeuk Kim 提交于
Otherwise we can get livelock like below. [79880.428136] dbench D 0 18405 18404 0x00000000 [79880.428139] Call Trace: [79880.428142] __schedule+0x219/0x6b0 [79880.428144] schedule+0x36/0x80 [79880.428147] schedule_timeout+0x243/0x2e0 [79880.428152] ? update_sd_lb_stats+0x16b/0x5f0 [79880.428155] ? ktime_get+0x3c/0xb0 [79880.428157] io_schedule_timeout+0xa6/0x110 [79880.428161] __lock_page+0xf7/0x130 [79880.428164] ? unlock_page+0x30/0x30 [79880.428167] pagecache_get_page+0x16b/0x250 [79880.428171] grab_cache_page_write_begin+0x20/0x40 [79880.428182] f2fs_write_begin+0xa2/0xdb0 [f2fs] [79880.428192] ? f2fs_mark_inode_dirty_sync+0x16/0x30 [f2fs] [79880.428197] ? kmem_cache_free+0x79/0x200 [79880.428203] ? __mark_inode_dirty+0x17f/0x360 [79880.428206] generic_perform_write+0xbb/0x190 [79880.428213] ? file_update_time+0xa4/0xf0 [79880.428217] __generic_file_write_iter+0x19b/0x1e0 [79880.428226] f2fs_file_write_iter+0x9c/0x180 [f2fs] [79880.428231] __vfs_write+0xc5/0x140 [79880.428235] vfs_write+0xb2/0x1b0 [79880.428238] SyS_write+0x46/0xa0 [79880.428242] entry_SYSCALL_64_fastpath+0x1e/0xad Fixes: cae96a5c8ab6 ("f2fs: check io submission more precisely") Reviewed-by: NChao Yu <yuchao0@huawei.com> Signed-off-by: NJaegeuk Kim <jaegeuk@kernel.org>
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由 Jaegeuk Kim 提交于
This patch removes REQ_PREFLUSH in the nobarrier case. Signed-off-by: NJaegeuk Kim <jaegeuk@kernel.org>
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由 Jaegeuk Kim 提交于
If the cached bio has the last page's index, then we need to submit it. Otherwise, we don't need to submit it and can wait for further IO merges. Reviewed-by: NChao Yu <yuchao0@huawei.com> Signed-off-by: NJaegeuk Kim <jaegeuk@kernel.org>
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由 Jaegeuk Kim 提交于
This patch check IO submission more precisely than previous rough check. Signed-off-by: NJaegeuk Kim <jaegeuk@kernel.org>
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由 Jaegeuk Kim 提交于
This patch introduces __write_data_page to call it by f2fs_write_cache_pages directly.. Signed-off-by: NJaegeuk Kim <jaegeuk@kernel.org>
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- 23 2月, 2017 4 次提交
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由 Wei Fang 提交于
A dead loop can be triggered in f2fs_fiemap() using the test case as below: ... fd = open(); fallocate(fd, 0, 0, 4294967296); ioctl(fd, FS_IOC_FIEMAP, fiemap_buf); ... It's caused by an overflow in __get_data_block(): ... bh->b_size = map.m_len << inode->i_blkbits; ... map.m_len is an unsigned int, and bh->b_size is a size_t which is 64 bits on 64 bits archtecture, type conversion from an unsigned int to a size_t will result in an overflow. In the above-mentioned case, bh->b_size will be zero, and f2fs_fiemap() will call get_data_block() at block 0 again an again. Fix this by adding a force conversion before left shift. Signed-off-by: NWei Fang <fangwei1@huawei.com> Acked-by: NChao Yu <yuchao0@huawei.com> Signed-off-by: NJaegeuk Kim <jaegeuk@kernel.org>
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由 Jaegeuk Kim 提交于
Sheng Yong reports needless preallocation if write(small_buffer, large_size) is called. In that case, f2fs preallocates large_size, but vfs returns early due to small_buffer size. Let's detect it before preallocation phase in f2fs. Reported-by: NSheng Yong <shengyong1@huawei.com> Signed-off-by: NJaegeuk Kim <jaegeuk@kernel.org>
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由 Chao Yu 提交于
This patch introduces a new flag to indicate inode status of doing atomic write committing, so that, we can keep atomic write status for inode during atomic committing, then we can skip GCing pages of atomic write inode, that avoids random GCed datas being mixed with current transaction, so isolation of transaction can be kept. Signed-off-by: NChao Yu <yuchao0@huawei.com> Signed-off-by: NJaegeuk Kim <jaegeuk@kernel.org>
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由 Chao Yu 提交于
Signed-off-by: NChao Yu <yuchao0@huawei.com> Signed-off-by: NJaegeuk Kim <jaegeuk@kernel.org>
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- 29 1月, 2017 3 次提交
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由 Jaegeuk Kim 提交于
This patch implements IO alignment by filling dummy blocks in DATA and NODE write bios. If we can guarantee, for example, 32KB or 64KB for such the IOs, we can eliminate underlying dummy page problem which FTL conducts in order to close MLC or TLC partial written pages. Note that, - it requires "-o mode=lfs". - IO size should be power of 2, not exceed BIO_MAX_PAGES, 256. - read IO is still 4KB. - do checkpoint at fsync, if dummy NODE page was written. Signed-off-by: NJaegeuk Kim <jaegeuk@kernel.org>
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由 Jaegeuk Kim 提交于
This patch adds final submit_bio() tracepoint. Reviewed-by: NChao Yu <yuchao0@huawei.com> Signed-off-by: NJaegeuk Kim <jaegeuk@kernel.org>
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由 Yunlei He 提交于
If the range we write cover the whole valid data in the last page, we do not need to read it. Signed-off-by: NYunlei He <heyunlei@huawei.com> [Jaegeuk Kim: nullify the remaining area (fix: xfstests/f2fs/001)] Signed-off-by: NJaegeuk Kim <jaegeuk@kernel.org>
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- 12 12月, 2016 1 次提交
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由 David Gstir 提交于
Rename the FS_CFLG_INPLACE_ENCRYPTION flag to FS_CFLG_OWN_PAGES which, when set, indicates that the fs uses pages under its own control as opposed to writeback pages which require locking and a bounce buffer for encryption. Signed-off-by: NDavid Gstir <david@sigma-star.at> Signed-off-by: NTheodore Ts'o <tytso@mit.edu>
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- 30 11月, 2016 1 次提交
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由 Chao Yu 提交于
We should use AOP_WRITEPAGE_ACTIVATE when we bypass writing pages. Signed-off-by: NChao Yu <yuchao0@huawei.com> Signed-off-by: NMiao Xie <miaoxie@huawei.com> Signed-off-by: NJaegeuk Kim <jaegeuk@kernel.org>
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- 26 11月, 2016 6 次提交
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由 Chao Yu 提交于
Normally, while committing checkpoint, we will wait on all pages to be writebacked no matter the page is data or metadata, so in scenario where there are lots of data IO being submitted with metadata, we may suffer long latency for waiting writeback during checkpoint. Indeed, we only care about persistence for pages with metadata, but not pages with data, as file system consistent are only related to metadate, so in order to avoid encountering long latency in above scenario, let's recognize and reference metadata in submitted IOs, wait writeback only for metadatas. Signed-off-by: NChao Yu <yuchao0@huawei.com> Signed-off-by: NJaegeuk Kim <jaegeuk@kernel.org>
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由 Jaegeuk Kim 提交于
In direct_IO path of f2fs_file_write_iter(), 1. f2fs_preallocate_blocks(F2FS_GET_BLOCK_PRE_DIO) -> allocate LBA X 2. f2fs_direct_IO() -> return 0; Then, f2fs_write_data_page() will allocate another LBA X+1. This makes EIO triggered by HM-SMR. Reviewed-by: NChao Yu <yuchao0@huawei.com> Signed-off-by: NJaegeuk Kim <jaegeuk@kernel.org>
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由 Jaegeuk Kim 提交于
This patch has no functional change. Signed-off-by: NJaegeuk Kim <jaegeuk@kernel.org>
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由 Jaegeuk Kim 提交于
This patch implements multiple devices support for f2fs. Given multiple devices by mkfs.f2fs, f2fs shows them entirely as one big volume under one f2fs instance. Internal block management is very simple, but we will modify block allocation and background GC policy to boost IO speed by exploiting them accoording to each device speed. Signed-off-by: NJaegeuk Kim <jaegeuk@kernel.org>
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由 Jaegeuk Kim 提交于
We can allow dio reads for LFS mode, while doing buffered writes for dio writes. Reviewed-by: NChao Yu <yuchao0@huawei.com> Signed-off-by: NJaegeuk Kim <jaegeuk@kernel.org>
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由 Jaegeuk Kim 提交于
Now we don't need to be too much careful about storage alignment for dio, since its speed becomes quite fast and we'd better avoid any misalignment first. Revert: 38aa0889 (f2fs: align direct_io'ed data to section) Reviewed-by: NChao Yu <yuchao0@huawei.com> Signed-off-by: NJaegeuk Kim <jaegeuk@kernel.org>
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- 24 11月, 2016 6 次提交
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由 Damien Le Moal 提交于
SMR stands for "Shingled Magnetic Recording" which makes sense only for hard disk drives (spinning rust). The ZBC/ZAC standards enable management of SMR disks, but solid state drives may also support those standards. So rename the HMSMR feature to BLKZONED to avoid a HDD centric terminology. For the same reason, rename f2fs_sb_mounted_hmsmr to f2fs_sb_mounted_blkzoned. Signed-off-by: NDamien Le Moal <damien.lemoal@wdc.com> Signed-off-by: NJaegeuk Kim <jaegeuk@kernel.org>
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由 Arnd Bergmann 提交于
gcc is unsure about the use of last_ofs_in_node, which might happen without a prior initialization: fs/f2fs//git/arm-soc/fs/f2fs/data.c: In function ‘f2fs_map_blocks’: fs/f2fs/data.c:799:54: warning: ‘last_ofs_in_node’ may be used uninitialized in this function [-Wmaybe-uninitialized] if (prealloc && dn.ofs_in_node != last_ofs_in_node + 1) { As pointed out by Chao Yu, the code is actually correct as 'prealloc' is only set if the last_ofs_in_node has been set, the two always get updated together. This initializes last_ofs_in_node to dn.ofs_in_node for each new dnode at the start of the 'next_block' loop, which at that point is a correct initialization as well. I assume that compilers that correctly track the contents of the variables and do not warn about the condition also figure out that they can eliminate the extra assignment here. Fixes: 46008c6d ("f2fs: support in batch multi blocks preallocation") Signed-off-by: NArnd Bergmann <arnd@arndb.de> Signed-off-by: NJaegeuk Kim <jaegeuk@kernel.org>
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由 Jaegeuk Kim 提交于
We don't need to allocate bio partially in order to maximize sequential writes. Signed-off-by: NJaegeuk Kim <jaegeuk@kernel.org>
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由 Chao Yu 提交于
f2fs can support fallocating blocks beyond file size without changing the size, but ->fiemap of f2fs was restricted and can't detect these extents fallocated past EOF, now relieve the restriction. Signed-off-by: NChao Yu <yuchao0@huawei.com> Signed-off-by: NJaegeuk Kim <jaegeuk@kernel.org>
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由 Chao Yu 提交于
In f2fs_map_blocks, let f2fs_balance_fs detects node page modification with dn.node_changed to avoid miss some corner cases. Signed-off-by: NChao Yu <yuchao0@huawei.com> Signed-off-by: NJaegeuk Kim <jaegeuk@kernel.org>
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由 Chao Yu 提交于
If there is no dirty pages in inode, we should give a chance to detach the inode from global dirty list, otherwise it needs to call another unnecessary .writepages for detaching. Signed-off-by: NChao Yu <yuchao0@huawei.com> Signed-off-by: NJaegeuk Kim <jaegeuk@kernel.org>
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- 14 11月, 2016 2 次提交
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由 David Gstir 提交于
Avoid re-use of page index as tweak for AES-XTS when multiple parts of same page are encrypted. This will happen on multiple (partial) calls of fscrypt_encrypt_page on same page. page->index is only valid for writeback pages. Signed-off-by: NDavid Gstir <david@sigma-star.at> Signed-off-by: NRichard Weinberger <richard@nod.at> Signed-off-by: NTheodore Ts'o <tytso@mit.edu>
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由 David Gstir 提交于
Not all filesystems work on full pages, thus we should allow them to hand partial pages to fscrypt for en/decryption. Signed-off-by: NDavid Gstir <david@sigma-star.at> Signed-off-by: NRichard Weinberger <richard@nod.at> Signed-off-by: NTheodore Ts'o <tytso@mit.edu>
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- 03 11月, 2016 1 次提交
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由 Jens Axboe 提交于
Add wbc_to_write_flags(), which returns the write modifier flags to use, based on a struct writeback_control. No functional changes in this patch, but it prepares us for factoring other wbc fields for write type. Signed-off-by: NJens Axboe <axboe@fb.com> Reviewed-by: NJan Kara <jack@suse.cz> Reviewed-by: NChristoph Hellwig <hch@lst.de>
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- 01 11月, 2016 1 次提交
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由 Christoph Hellwig 提交于
Remove the WRITE_* and READ_SYNC wrappers, and just use the flags directly. Where applicable this also drops usage of the bio_set_op_attrs wrapper. Signed-off-by: NChristoph Hellwig <hch@lst.de> Signed-off-by: NJens Axboe <axboe@fb.com>
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- 12 10月, 2016 1 次提交
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由 Michal Hocko 提交于
The mapping_set_error() helper sets the correct AS_ flag for the mapping so there is no reason to open code it. Use the helper directly. [akpm@linux-foundation.org: be honest about conversion from -ENXIO to -EIO] Link: http://lkml.kernel.org/r/20160912111608.2588-2-mhocko@kernel.orgSigned-off-by: NMichal Hocko <mhocko@suse.com> Signed-off-by: NAndrew Morton <akpm@linux-foundation.org> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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- 01 10月, 2016 3 次提交
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由 Chao Yu 提交于
While we call ->writepages, there are two cases: a. we didn't writeout any dirty pages, since they are writebacked by other thread concurrently. b. we writeout dirty pages, and have already submitted bio to block layer. In these cases, we don't need to do additional bio flushing unnecessarily, it may split bio in cache into smaller one. Signed-off-by: NChao Yu <yuchao0@huawei.com> Signed-off-by: NJaegeuk Kim <jaegeuk@kernel.org>
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由 Chao Yu 提交于
Previously, we only support global fault injection configuration, so that when we configure type/rate of fault injection through sysfs, mount option, it will influence all f2fs partition which is being used. It is not make sence, since it will be not convenient if developer want to test separated partitions with different fault injection rate/type simultaneously, also it's not possible to enable fault injection in one partition and disable fault injection in other one. >From now on, we move global configuration of fault injection in module into per-superblock, hence injection testing can be more flexible. Signed-off-by: NChao Yu <yuchao0@huawei.com> Signed-off-by: NJaegeuk Kim <jaegeuk@kernel.org>
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由 Weichao Guo 提交于
This patch improves the migration of dirty pages and allows migrating atomic written pages that F2FS uses in Page Cache. Instead of the fallback releasing page path, it provides better performance for memory compaction, CMA and other users of memory page migrating. For dirty pages, there is no need to write back first when migrating. For an atomic written page before committing, we can migrate the page and update the related 'inmem_pages' list at the same time. Signed-off-by: NWeichao Guo <guoweichao@huawei.com> Reviewed-by: NChao Yu <yuchao0@huawei.com> [Jaegeuk Kim: fix some coding style] Signed-off-by: NJaegeuk Kim <jaegeuk@kernel.org>
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- 23 9月, 2016 1 次提交
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由 Yunlei He 提交于
This patch allow preallocates data blocks for buffered aio writes in encrypted file. Signed-off-by: NYunlei He <heyunlei@huawei.com> Reviewed-by: NChao Yu <yuchao0@huawei.com> [Jaegeuk Kim: fix to avoid BUG_ON] Signed-off-by: NJaegeuk Kim <jaegeuk@kernel.org>
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